Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Marvin Sanford Belsky, MD

Individual provider Internal Medicine Physician · NPI 1700113099

Dr. Marvin Sanford Belsky, MD is an Internal Medicine Physician in New York, New York. Practices as a sole proprietor. Licensed in New York.

Licensed in
NY
In the registry since
2009
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

290 W End Ave
New York, NY 10023-8106
Phone: (212) 787-5577
Fax: (212) 787-2077
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 073312 (NY)

Record details

NPI number1700113099
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 8, 2009
Last updated in NPPESMarch 7, 2023

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